Setting up how Media Center downloads the Guide
You must select a TV listings provider before you can use and download the Guide. You can set up Media Center to download the Guide when you connect to the Internet or your can select to manually download the Guide.
1 Press the Media Center Start button 
on the remote control.
2Select Settings, General, Automatic Download Options, and then select:
■Connect to the Internet and download: Media Center connects to the Internet, and then downloads the Guide.
Or
■Download when connected: Connect to the Internet, and Media Center automatically downloads the Guide.
Or
■Manual download: Connect to the Internet and then manually download the Guide in Media Center TV Settings menu.
3Follow the onscreen instructions. When the Television Program Guide starts downloading from the Internet, it can take up to 30 minutes, depending on the amount of data to download and the speed of your Internet connection.
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No data available appears next to each channel if the Guide has not been downloaded. This can occur if the HP Digital Entertainment Center does not have an Internet connection or if there is no service available in your country/region.
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If your HP Digital Entertainment Center has, for example, a DSL connection, your
HP Digital Entertainment Center is always connected. The Guide is downloaded at a specified time every few days. This option may not be supported by all providers. The download interval varies, depending on the ISP.
38Microsoft Windows XP Media Center Edition 2005 Reference Guide